8 Questions
What happens to mitochondrial density with an exclusive high-intensity strength program?
Decreases
Which type of muscle fibers are more powerful and fatigue more easily than type I fibers?
Type IIa fibers
What is the characteristic of type IIa muscle fibers in terms of twitching?
Fast twitch
What does rigor mortis result in after death?
Muscle stiffening
What type of muscle fibers support long distance endurance activities like marathon running?
Slow-twitch (type I)
What occurs in skeletal muscle fibers due to strength training?
Increase in muscle fiber hypertrophy
Which type of muscle fibers support quick, powerful movements like sprinting or weightlifting?
Fast-twitch (type II)
What type of muscle fibers are characterized by moderate resistance to fatigue and are important for activities like cycling or swimming?
Type IIa
Learn about the characteristics of type I and type II muscle fibers, how they are impacted by strength training, and the differences between type IIa and type I fibers in terms of speed, power, and fatigue.
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